Satellite Dir MEL Long Local Time UTC Time Duration Freq Here are the details from WxToImg of the predicted pass: UTC The interferance that did result I believe was down mainly to fading due to circular polarisation and also the bad weather we were having (heavy cloud and rain – indeed, you notice in the image you can not make out Tassie other than for the computer generate outline). I didn’t expect anything with such detail and colour unless I got a better receiver (and most likely a proper antenna).īut it was a good pass, and indeed with such good clean sky access I believe it helped. The resultant image even as a thumbnail was far better than anything I’d ever achieved in Canberra – and that is what you see in the first image. So I waited the day with keen anticipation to see what would occur.Ĭhecking the image just after 2pm, I was amazed with what I could see. I settled on NOAA-19 as it looked to have the best passes over the coming period.Ĭhecking the images this morning, there was nothing too spectacular, however there was a good predicted pass for this afternoon just after 2pm (local time). Last night I quickly downloaded WxToImg onto the machine and went about dialing it all in – making sure the audio was all correct as I’d have to leave it to run over night while I slept. And further, this was from the West were I do have far less of a view – South/East is the preferred approach. Considering further I’m still just using the Diamond X-50 and haven’t even bothered to consider the circular polarisation.
To consider this was achieved with essentially a $25 receiver and some free software is amazing. These can be seen in the first NOAA-19 image with both channels, and you’ll notice only a few spots of noise which I believe was mainly due to physical obstruction. The results were amazing – the best by a long shot that I’ve every received. So with all trimmed and ready to go, I keenly awaited 0446UTC for the next NOAA-19 pass.
Then on turning the gain in SDR# up full and increasing the AF Level slightly things were looking (to my eye) perfect! But before even changing anything things were looking drastically different. And the title picture of New Zealand is from NOAA-19.Īfter getting past some recurring computer freezes (think I need to rebuild my PC) I was able to play with an initial pass to play with some settings. To finish, here’s a couple of images received via this setup (one from NOAA-15 and one from NOAA-19). Actually, to my surprise I’m the only VK7 to have recorded reception of any telemetry (according to the FUNcube Upload Ranking page).
Download the rtl tools source code via git from OsmoSDR.Turns out, it was as easy as… pi! (Sorry… ? ) It got me wondering as to the possibilities of running the dongle via it. Eventually though I gave up on it, as although I could receive reasonable pictures with it, the device kept causing my machine to freeze.Īnyway, I recently dropped a raspberry Pi in the shack to act as a router between my shack and my wireless network. usr/local/bin/wxtoimg -m $-map.png -c -e VEG $3.wav $3.veg.Last year I was playing with a cheap USB dongle for weather satellite reception. This enhancement option is temperature normalised.
Increases contrast by saturating the very low and very high temperature regions where there is typically very little information. #NOAA general purpose meteorological IR enhancement option. Especially the sea surface temperature image. Some of them are not all that impresive, but during hurricane season, these could be cool to see. The following can be added to the code for even more images. Happy to share the code if someone wants to try it.Ģ. This lets me know it's ok to make changes, adjust antenna, etc. Basically, when the script is running, the red led activates and then turns back to green when it ends. I have been playing around with a pi stoplight (red, yellow and green led) that activates RED and GREEN at certain times based on the scripts. Can anyone point me to the spot in the code that would allow me to receive at night as well?ġ. It seems that the script(s) only activate during the daytime. I've been tweaking the code and have one question and two comments.
Click to expand.Thank you to everyone who is involved with this thread.